emery



@einen gtats atrnt @frn CHARLES` MOORE AND `ARTHUR P. EMllRY, OF NEW V YORK, N; Y.

Letters Patent Nd. 70,242, dated October 29, 186i'.

IMPROVEMENT IN ROTARY METERS 0R MOTORS.

TO ALL WHOM IT MAY CONGERN:

Be it known that we, CHARLES Moons and ARTHUR P. Ensnv, of the city and State of New York, have invented, made, and applied'to use a certain new and improved Rotary Meter or Motor; and we do hereby declare the following to be a full, clear, and exact description of the said invention, reference being had to the annexed drawing, making part of this specification, wherein- Figure l is an elevation of said meter with the cap plates removed, and

Figure 2 is a sectional plan at the line :e x.

Similar marks of reference denote the same parts.

This invention relates to a meter or motor formed of two cylinders, one within and eccentric to the other, in combination with pistons placed radially to the inner cylinder, and connected together by links to rivet, that forms the centre of motion around which said pistons revolve, thus dispensing with a iixed crankpin or eccentric within the cylinder, and leaving the parts much more free to accommodate themselves to the various conditions incident to expansion and contraction from changes of temperature.

We make the heads of the revolving cylinder inthe form of disks, that revolve in recesses in the case of Y the engine, so as to prevent friction and wear upon the pistons.

In the drawing, a is a circular case, with inlet pipe 1J and outlet pipe c. d is one of the circular heads to the case, and e is the other. The inner cylinder fis provided with disk-heads g and L, one of which is removable, in order that the cylinderfmay be placed within the case a, and receive the pistons t' z', hereafter referred to. The heads g and L travel in the circular recesses in the ease a provided for them, and between these heads g and t the case ais formed on its interior surface as a cylinder eccentric to the exterior of said case a, so that it 'comes into contact or nearly so with the exterior surface ofthe cylinderf, and forms theabutment for the steam under pressure, or other fluid or liquid, to act against in one direction, and against the pistons z' in the other direction. The pistons are fitted to slide in grooves on the insides'of the disks g and L, or they may be contained within cases inside the cylinder f, and' these pistons are connected by links m to a rivet 'or centre-bolt, o, that is Within the cylinderf, and not connected with the outer case.

It will now be understood that the pressure ofthe fluid against the pistons moves them around, and that the links m keep the pistons tithe same distance apart, and insure their retraction and projection as they pass around in the eccentric cylindrical space Z. We form grooves at 1t n, to allow the steam to escape from behind the piston that is being drawn in, so that it cannot cushion against the abutment at Z.

We are aware that the sliding pistons of a rotary engine have been connected to and operated by means of a central pin, rigidly attached to the head oi' the outer cylinder, and concentric therewith, but this we do not claim, but whatwe do claim, and desire' to secure by Letters Patent, is-

1. The connecting links m, hinged together by the independent pin o, concentric with the outer cylinder7 combination with the sliding pistons t', for operation together substantially as shown and described.

2. The independent pin o, arranged for connecting the sliding pistons z'by means of the links m, substantially as shown and described.

In witness whereof we have hereunto set our signatures this twenty-ninth day of April, A. D. 1867.

CHARLES MOORE, vARTHUR P. EMERY.

Witnesses:

Guss. H. SMITH, Guo. D. WALKER. 

